# Cleanup environment from any variables
unexport BUILD_ARCH BUILD_PLATFORM BUILDTARGET CROSSTARGET TOOLCHAIN
+ifeq "$(BUILD_ARCH)" "aarch64"
+ IS_64BIT = 1
+endif
+
+ifeq "$(BUILD_ARCH)" "x86_64"
+ IS_64BIT = 1
+endif
+
# URLs that are common sources of downloads. If you're having trouble with
# a site you should change its URL to that of a suitable mirror site.
#